i upgraded my 2G to 3G yesterday and having spent a few hours re-installing all the apps from my 2G 2.2.1 to the 3G.
i notice certain apps, like keyboard color simply does not work. also, fontswap does not work, but found a workaround online. if anyone needs that, i will be happy to post it here.
anyone has the workaround for the keyboard color (like when you press a key, you can select a different color via winterboard), please let me know.